TSOP22..UH1
Vishay Telefunken
Photo Modules for PCM Remote Control Systems
Available types for different carrier frequencies
Type |
fo |
Type |
fo |
TSOP2230UH1 |
30 kHz |
TSOP2233UH1 |
33 kHz |
TSOP2236UH1 |
36 kHz |
TSOP2237UH1 |
36.7 kHz |
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TSOP2238UH1 |
38 kHz |
TSOP2240UH1 |
40 kHz |
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TSOP2256UH1 |
56 kHz |
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Description
The TSOP22..UH1 ± series are miniaturized receivers |
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for infrared remote control systems. PIN diode and |
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preamplifier are assembled on lead frame, the epoxy |
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package is designed as IR filter. |
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The demodulated output signal can directly be |
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decoded by a microprocessor. The main benefit is the |
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reliable function even in disturbed ambient and the |
16 081 |
protection against uncontrolled output pulses. |
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Features
DPhoto detector and preamplifier in one package
DInternal filter for PCM frequency
DTTL and CMOS compatibility
DOutput active low
DImproved shielding against electrical field disturbance
DSuitable burst length ≥ 10 cycles/burst
Special Features
DSmall size package
DHigh immunity against disturbance light
DNo occurrence of disturbance pulses at the output
DShort settling time after power on (<200ms)
DContiunous data transmission possible ( 800 bursts/s)
Block Diagram
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2 |
Input |
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Control |
VS |
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Circuit |
30 kW |
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1 |
PIN |
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OUT |
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AGC |
Band |
Demodu- |
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Pass |
lator |
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3 |
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GND |
14318 |
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Document Number 82101 |
www.vishay.com |
Rev. 4, 30-Mar-01 |
1 (7) |
TSOP22..UH1
Vishay Telefunken
Absolute Maximum Ratings
Tamb = 25_C
Parameter |
Test Conditions |
Symbol |
Value |
Unit |
Supply Voltage |
(Pin 2) |
VS |
±0.3...6.0 |
V |
Supply Current |
(Pin 2) |
IS |
5 |
mA |
Output Voltage |
(Pin 1) |
VO |
±0.3...6.0 |
V |
Output Current |
(Pin 1) |
IO |
5 |
mA |
Junction Temperature |
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Tj |
100 |
°C |
Storage Temperature Range |
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Tstg |
±25...+85 |
°C |
Operating Temperature Range |
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Tamb |
±25...+85 |
°C |
Power Consumption |
(Tamb x 85 °C) |
Ptot |
50 |
mW |
Soldering Temperature |
t x 10 s, 1 mm from case |
Tsd |
260 |
°C |
Basic Characteristics
Tamb = 25_C
Parameter |
Test Conditions |
Symbol |
Min |
Typ |
Max |
Unit |
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Supply Current (Pin 2) |
VS = 5 V, Ev = 0 |
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ISD |
0.8 |
1.1 |
1.5 |
mA |
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VS = 5 V, Ev = 40 klx, sunlight |
ISH |
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1.4 |
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mA |
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Supply Voltage (Pin 2) |
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VS |
4.5 |
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5.5 |
V |
Transmission Distance |
Ev = 0, test signal see fig.7, |
d |
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35 |
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m |
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IR diode TSAL6200, IF = 250 mA |
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Output Voltage Low (Pin 1) |
IOL = 0.5 mA, |
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VOL |
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250 |
mV |
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E = 0.7 mW/m2, f = f |
o |
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e |
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Irradiance (30 ± 40 kHz) |
Pulse width tolerance: |
E |
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0.2 |
0.4 |
mW/m2 |
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tpi ± 5/fo < tpo < tpi + 6/fo, |
e min |
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test signal see fig.7 |
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Irradiance (56 kHz) |
Pulse width tolerance: |
E |
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0.3 |
0.5 |
mW/m2 |
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tpi ± 5/fo < tpo < tpi + 6/fo, |
e min |
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test signal see fig.7 |
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Irradiance |
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E |
30 |
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W/m2 |
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e max |
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Directivity |
Angle of half transmission distance |
ϕ1/2 |
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±45 |
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deg |
Application Circuit
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100 W *) |
+5V |
TSOP22.. |
2 |
4.7 mF *) |
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>10 kW |
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TSAL62.. |
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optional |
mC |
1 |
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**) |
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16133 |
3 |
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GND |
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*) recommended to suppress power supply disturbances
**) The output voltage should not be hold continuously at a voltage below 3.3V by the external circuit.
www.vishay.com |
Document Number 82101 |
2 (7) |
Rev. 4, 30-Mar-01 |
TSOP22..UH1
Vishay Telefunken
Suitable Data Format
The circuit of the TSOP22..UH1 is designed in that way that unexpected output pulses due to noise or disturbance signals are avoided. A bandpassfilter, an integrator stage and an automatic gain control are used to suppress such disturbances.
The distinguishing mark between data signal and disturbance signal are carrier frequency, burst length and duty cycle.
The data signal should fullfill the following condition:
•Carrier frequency should be close to center frequency of the bandpass (e.g. 38kHz).
•Burst length should be 10 cycles/burst or longer.
•After each burst which is between 10 cycles and 70 cycles a gap time of at least 14 cycles is neccessary.
•For each burst which is longer than 1.8ms a corresponding gap time is necessary at some time in the data stream. This gap time should be at least 4 times longer than the burst.
•Up to 800 short bursts per second can be received continuously.
Some examples for suitable data format are:
NEC Code, Toshiba Micom Format, Sharp Code, RC5 Code, RC6 Code, R±2000 Code.
When a disturbance signal is applied to the TSOP22..UH1 it can still receive the data signal. However the sensitivity is reduced to that level that no unexpected pulses will occure.
Some examples for such disturbance signals which are suppressed by the TSOP22..UH1 are:
•DC light (e.g. from tungsten bulb or sunlight)
•Continuous signal at 38kHz or at any other frequency
•Signals from fluorescent lamps with electronic ballast with high or low modulation (see Figure A or Figure B).
0 |
5 |
10 |
15 |
20 |
time [ms]
Figure A: IR Signal from Fluorescent Lamp with low Modulation
0 |
5 |
10 |
15 |
20 |
time [s]
Figure B: IR Signal from Fluorescent Lamp with high Modulation
Document Number 82101 |
www.vishay.com |
Rev. 4, 30-Mar-01 |
3 (7) |